PublicID | 2022p448462 |
UTC Time | 2022-06-15T22:17:32Z |
Latitude | -23.04 (± 32.4 km) |
Longitude | -179.05 (± 36.7 km) |
Depth | 500 km (± 0 km) |
Depth Type | operator assigned |
Earth Model | iasp91 |
Used Phase Count | 13 |
Used Station Count | 12 |
Standard Error | 1.23 (s) |
Azimuthal Gap | 324.73 (degrees) |
Minimum Distance | 6.28 (degrees) |
Type | Magnitude | Station Count |
Preferred (mB) | 4.8 (± 0.6) | |
mB | 4.8 (± 0.6) | 3 |
Mw(mB) | 4.0 (± 0.6) | 1 |
MLv | 5.6 | 1 |
M | 5.6 | 1 |
GeoNet combines magnitudes into a summary magnitude, M, which consists of a weighted average of the individual magnitudes and attempts to be a best possible compromise between all magnitudes for a range of earthquake sizes.
Summary magnitude for GeoNet is then defined as:
M = (2 * MLv + (0.4 * number_of stations(Mw(mB)) - 1) * Mw(mB)) / (2 + (0.4 * number_of_stations(Mw(mB)) - 1))
Where MLv is local magnitude calculated on the vertical component and Mw(mB) is a Mw estimation based of mB by Bormann and Saul (2008).
Map showing stations with picks used to locate the earthquake. Stations with picks that have a zero weight in the solution are shown as small grey circles. Those with a higher weight are shown as larger circles. The quake is shown by the largest circle.